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Command Interface
5-3
SIMATIC NET CP 243-2 AS-i Master
C79000-G8976-C142/02
Command Sequence
The diagram below shows the following:
How to execute commands in the user program
How the CP 243-2 reacts to a command
Initial status
ASI_COM bit = 0
ASI_RESP bit = 0
Start command
Set ASI_COM bit = 1
Wait for response
ASI_RESP bit = ?
Response data valid
ASI_RESP bit = 1
detected
Evaluate response data
After evaluation, set
ASI_COM = 0
Ready to send command
detected
ASI_RESP bit = 0
detected
AS-i master
(user program)
CP 243-2
(reaction to command)
Receives command
Detects that
response data
were evaluated
Signals command
executed
Sets ASI_RESP = 1
Ready for new command
Sets ASI_RESP = 0
Set command parameter
in the analog output area
Initial status
ASI_COM bit = 0
ASI_RESP bit = 0
Executes command
Figure 5-1
- AS-Interface 1
- Safety Guidelines 2
- Qualified Personnel 2
- Correct Usage 2
- Trademarks 2
- Purpose of the Manual 3
- Requirements 3
- Diskette with Sample Programs 3
- Contents 5
- Instructions 9
- C79000-G8976-C142/02 10
- 1.2 Uses of the Module 11
- Components Supplied 12
- 1.4 Installing the Module 14
- Figure 1-2 15
- 1.6 Terminal Block 16
- 1.7 Modes of the CP 243-2 18
- Meaning of the LEDs 19
- SET Button 19
- 1.8.1 Status Display 20
- 1.8.2 Slave Display 22
- Example of a Slave Display 23
- Configuration Mode 24
- Protected Mode 24
- Preparing to Configure 25
- Configuring 25
- S7-200 CPU 27
- 2.1 Overview 28
- Analog Module 29
- Address Areas 30
- Examples 30
- Status/error information 33
- Control of the CP 33
- Bank selection 33
- Figure 2-2 33
- Range of Values 34
- Meaning for the User Program 35
- Structure of the Status Byte 36
- Description of the Bits 36
- Structure of the Control Byte 37
- Principle 42
- Advantage 42
- Access in the User Program 42
- 2.5.1 Analog Input Area 44
- Banks 16–30: Reserved area 45
- Banks 48–63: Reserved area 46
- 2.5.2 Analog Output Area 47
- Access to the Binary Values 50
- Analog Input Area of the CP) 51
- Analog Output Area of the CP) 51
- input bytes 54
- output bytes16 54
- Data Access with STEP 7 Micro 55
- Access to the Analog Values 56
- Special Situations 62
- User Program 65
- 4.1 Signaling 66
- Table 4-1 67
- Command Sequence 71
- Overview 75
- Command Status 79
- 5.2.1 Set_Permanent_Parameter 81
- 5.2.2 Get_Permanent_Parameter 82
- 5.2.3 Write_Parameter 83
- 5.2.4 Read_Parameter 84
- 5.2.5 Store_Actual_Parameters 85
- Purpose of the Command 88
- 5.2.10 Set_Extended_LPS 90
- 5.2.11 Set_Offline_Mode 91
- 5.2.12 Select_Autoprogramming 92
- 5.2.13 Set_Operation_Mode 93
- 5.2.15 Get_AS-i_Slave_Status 95
- Meaning of the Flags 99
- Command Interface 100
- 5.2.21 Read_Version_ID 115
- 5.2.22 Read_AS-i_Slave_ID 116
- 5.2.23 Read_AS-i_Slave_ID1 117
- 5.2.25 Read_AS-i_Slave_ID2 119
- 5.2.26 Read_AS-i_Slave_I/O 120
- 5.2.27 Get_LPF 121
- Programming 130
- Conformance Statement (PICS) 135
- References 139
- Order numbers 140
- Notes on the CE Mark 141
- SIMATIC Training Center 143
- Further Support 144
- Glossary 145
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